Ccarbonic Anhydrase Inhibitors: Bioreductive Nitro-Containing Sulfonamides With Selectivity For Targeting The Tumor Associated Isoforms Ix And Xii(1009 views) D'Ambrosio K, Vitale R, Dogne J, Masereel B, Innocenti A, Scozzafava A, De Simone G, Supuran CT
J Med Chem (ISSN: 1520-4804, 0022-2623, 0022-2623print), 2008 Jun 12; 51(11): 3230-3237.
Keywords: 2 Chloro 5 Nitro Benzenesulfonamide, Carbonate Dehydratase, Carbonate Dehydratase Inhibitor, Nitro Derivative, Article, Crystal Structure, Drug Selectivity, Drug Structure, Drug Targeting, Enzyme Inhibition, Hypoxia, Molecular Dynamics, Molecular Model, Reduction, Sequence Alignment, Tumor, X Ray Crystallography, Amino Acid Sequence, Antigens, Neoplasm, Carbonic Anhydrase I, Carbonic Anhydrase Inhibitors, Conserved Sequence, X-Ray, Humans, Isoenzymes, Molecular Sequence Data, Nitro Compounds, Structure-Activity Relationship,
Affiliations: *** IBB - CNR ***
Istituto di Biostrutture e Bioimmagini-CNR, via Mezzocannone 16, 80134 Napoli, Italy
Istituto di Chimica e Biomolecolare-CNR, via Campi Flegrei 34, 80078, Pozzuoli, Italy
Drug Design and Discovery Center, University of Namur, 61 rue de Bruxelles, 5000 Namur, Belgium
Università degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Firenze), Italy
Universit degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Firenze), Italy
References: Not available.
Ccarbonic Anhydrase Inhibitors: Bioreductive Nitro-Containing Sulfonamides With Selectivity For Targeting The Tumor Associated Isoforms Ix And Xii
2-Substituted-5-nitro-benzenesulfonamides incorporating a large variety of secondary/tertiary amines were explored as inhibitors of the zinc enzyme carbonic anhydrase (CA, EC 4. 2. 1. 1), with the aim of designing bioreductive inhibitors targeting the hypoxia overexpressed, tumor-associated isozymes. The compounds were ineffective inhibitors of the cytosolic isoform I, showed a better inhibition of the physiologically relevant CA II (KIs of 8. 8-4975 nM), and strongly inhibited the tumor-associated CA IX and XII (K Is of 5. 4-653 nM). Some of these compounds showed excellent selectivity ratios for the inhibition of the tumor-associated isozymes over the cytosolic ones (in the range of 10-1395). The X-ray crystal structure of the adduct of hCA II with the lead molecule 2-chloro-5-nitro-benzenesulfonamide as well as molecular modeling studies for interaction with hCA IX afforded a better understanding of factors governing the discrimination of the two isoforms for this type of bioreductive compound targeting specifically hypoxic tumors. 2008 American Chemical Society
Ccarbonic Anhydrase Inhibitors: Bioreductive Nitro-Containing Sulfonamides With Selectivity For Targeting The Tumor Associated Isoforms Ix And Xii